Fix test case for RuntimeChecksBypass

Author: tamasvajk

csharp/ql/test/query-tests/Security Features/CWE-020/RuntimeChecksBypass.cs

@@ -17,8 +17,10 @@ public Test1(string v)
     [OnDeserializing]
     public void Deserialize()
     {
-        f = $"invalid";  // BAD
+        f = GetString();  // BAD, non-constant and non-object creation expr
     }
+
+    string GetString() { throw null; }
 }
 
 [Serializable]

csharp/ql/test/query-tests/Security Features/CWE-020/RuntimeChecksbypass.expected

@@ -1,3 +1,4 @@
-| RuntimeChecksBypass.cs:124:15:124:34 | call to method GetInt32 | This write to $@ may be circumventing a $@. | RuntimeChecksBypass.cs:112:16:112:18 | Age | Age | RuntimeChecksBypass.cs:116:9:117:53 | if (...) ... | check |
-| RuntimeChecksBypass.cs:168:15:168:17 | access to local variable age | This write to $@ may be circumventing a $@. | RuntimeChecksBypass.cs:153:16:153:18 | Age | Age | RuntimeChecksBypass.cs:157:9:158:53 | if (...) ... | check |
+| RuntimeChecksBypass.cs:20:13:20:23 | call to method GetString | This write to $@ may be circumventing a $@. | RuntimeChecksBypass.cs:7:19:7:19 | f | f | RuntimeChecksBypass.cs:11:9:14:9 | if (...) ... | check |
+| RuntimeChecksBypass.cs:126:15:126:34 | call to method GetInt32 | This write to $@ may be circumventing a $@. | RuntimeChecksBypass.cs:114:16:114:18 | Age | Age | RuntimeChecksBypass.cs:118:9:119:53 | if (...) ... | check |
+| RuntimeChecksBypass.cs:170:15:170:17 | access to local variable age | This write to $@ may be circumventing a $@. | RuntimeChecksBypass.cs:155:16:155:18 | Age | Age | RuntimeChecksBypass.cs:159:9:160:53 | if (...) ... | check |
 | RuntimeChecksBypassBad.cs:19:15:19:34 | call to method GetInt32 | This write to $@ may be circumventing a $@. | RuntimeChecksBypassBad.cs:7:16:7:18 | Age | Age | RuntimeChecksBypassBad.cs:11:9:12:53 | if (...) ... | check |